San Francisco City property record for 643 12th Ave, San Francisco, CA 94118
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,642 sqft · built 1925 |
| Lot Size | 0.001 acres (30 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,540,000 (Jul 2010) |
| Tax Bill | $24,899 (2025) |
| APN | 1632-008C |
| Primary APN | 1632-008C |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 3 Stories |
| Building Area | 2,642 sqft Living Area |
| 1st Floor Area | 2,642 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1925 |
| Architectural Style | Bungalow |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Tar & Gravel |
| Lot Area | 30 sqft (0.001 acres) |
| Lot Dimensions | 120 ft deep x 25 ft wide |
| Garage Type | Covered |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 643 12TH AVE |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94118-3618 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH1 |
| Legal Description | MAP C4 5 |
| Legal Subdivision | PORTION OUTSIDE LAND BLOCK #369 |
| Legal Block | 1632 |
| Legal Lot Number | 8C |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | RICHMOND-PRESIDIO-MARINA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 45201 |
Source: San Francisco City records, as of September 8, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 643 12TH AVE, SAN FRANCISCO, CA 94118-3618 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 16, 2010 · Amount on Record |
| Deed Sale | Jul 16, 2010 · Amount on Record |
| Prior Sale | Nov 5, 2009 · Amount on Record |
| Deed Document Number | 2010997151 |
| Deed Book / Page | 187 / 68 |
| Prior Transfer Date | Oct 28, 2009 |
| Prior Transfer Doc | K014/0039 |
| Record Updated | Oct 29, 2026 |
Source: San Francisco City assessment roll, as of September 8, 2026
| Type | Name |
|---|---|
| State | California |
| County / Municipality | San Francisco City |
| Unified School District | San Francisco Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,077,812 (+2%) Land $1,489,752 Building $588,060 | |
| 2025 | $24,899.00 (+2.96%) | $2,037,053 (+4.04%) Land $1,460,536 Building $576,517 |
| 2024 | $24,184.00 (+1.51%) | |
| 2023 | $23,824.00 (+1.91%) | $1,957,955 Land $1,403,823 Building $554,132 |
| 2022 | $23,378.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SFPUC CITY DISTRIBUTION DIVISION serves 848,019 people · EPA ID CA3810011 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2023 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 1,399 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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